For frequent travelers, it feels like you’re always on the road, on your way to the airport, or waiting in line at hotel registration. Most of all, it feels like you’re constantly packing and unpacking your luggage. Even those of us who travel less frequently - a trip home to visit our mother and father at the holidays, a quick trip to the mountains to enjoy the great outdoors, and an annual vacation - can find packing and unpacking a hassle. The good news is that, with a…